{"id":"BIT-consul-2026-15972","summary":"Unauthenticated denial of service via unbounded external gRPC connection acceptance","details":"Consul Community Edition and Consul Enterprise 1.13.0 through 2.0.2 are vulnerable to an unauthenticated denial of service through unbounded connection acceptance on the external gRPC listeners. A remote attacker may exhaust agent file descriptors, goroutines, and memory by opening many incomplete connections, potentially preventing legitimate clients from connecting. This vulnerability, CVE-2026-15972, is fixed in Consul 2.0.3 and Consul Enterprise 1.21.17, 1.22.11, and 2.0.3.","aliases":["CVE-2026-15972"],"modified":"2026-08-24T08:15:17.189758107Z","published":"2026-08-17T05:38:03.657Z","database_specific":{"severity":"High","cpes":["cpe:2.3:a:hashicorp:consul:*:*:*:*:enterprise:*:*:*","cpe:2.3:a:hashicorp:consul:*:*:*:*:community:go:*:*","cpe:2.3:a:hashicorp:consul:*:*:*:*:enterprise:go:*:*"]},"references":[{"type":"WEB","url":"https://discuss.hashicorp.com/t/hcsec-2026-25-multiple-vulnerabilities-impacting-hashicorp-consul/77629"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-15972"}],"affected":[{"package":{"name":"consul","ecosystem":"Bitnami","purl":"pkg:bitnami/consul"},"ranges":[{"type":"SEMVER","events":[{"introduced":"1.13.0"},{"fixed":"2.0.3"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/consul/BIT-consul-2026-15972.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}],"schema_version":"1.9.0"}